País: Estados Unidos
Língua: inglês
Origem: NLM (National Library of Medicine)
ZONISAMIDE (UNII: 459384H98V) (ZONISAMIDE - UNII:459384H98V)
Aidarex Pharmaceuticals LLC
ZONISAMIDE
ZONISAMIDE 100 mg
ORAL
PRESCRIPTION DRUG
Zonisamide capsules USP are indicated as adjunctive therapy in the treatment of partial seizures in adults with epilepsy. Zonisamide capsules are contraindicated in patients who have demonstrated hypersensitivity to sulfonamides or zonisamide. The abuse and dependence potential of zonisamide has not been evaluated in human studies (see WARNINGS, Cognitive/Neuropsychiatric Adverse Events subsection). In a series of animal studies, zonisamide did not demonstrate abuse liability and dependence potential. Monkeys did not self-administer zonisamide in a standard reinforcing paradigm. Rats exposed to zonisamide did not exhibit signs of physical dependence of the CNS-depressant type. Rats did not generalize the effects of diazepam to zonisamide in a standard discrimination paradigm after training, suggesting that zonisamide does not have abuse potential of the benzodiazepine-CNS depressant type.
Zonisamide is available as 100 mg two-piece hard gelatin capsules. The capsules imprinted with codes are printed in black ink. Zonisamide is available in bottles Store at 20°C to 25°C (68°F to 77°F) [see USP Controlled Room Temperature], in a dry place and protected from light. Repackaged by Aidarex Pharmaceuticals, LLC Corona, CA 92880
Abbreviated New Drug Application
ZONISAMIDE- ZONISAMIDE CAPSULE Aidarex Pharmaceuticals LLC ---------- MEDICATION GUIDE Zonisamide Capsules, USP (zoe nis' a mide) Read this Medication Guide before you start taking zonisamide capsules and each time you get a refill. There may be new information. This information does not take the place of talking to your healthcare provider about your medical condition or treatment. What is the most important information I should know about zonisamide capsules? Zonisamide capsules may cause serious side effects, including: • Serious skin rash that can cause death. • Less sweating and increase in your body temperature (fever). • Suicidal thoughts or actions in some people. • Increased level of acid in your blood (metabolic acidosis). • Problems with your concentration, attention, memory, thinking, speech, or language. • Blood cell changes such as reduced red and white blood cell counts. These serious side effects are described below. 1. Zonisamide capsules may cause a serious skin rash that can cause death. These serious skin reactions are more likely to happen when you begin taking zonisamide capsules within the first 4 months of treatment but may occur at later times. 2. Zonisamide capsules may cause you to sweat less and to increase your body temperature (fever). You may need to be hospitalized for this. You should watch for decreased sweating and fever, especially when it is hot and especially in children taking zonisamide capsules. Call your health care provider right away if you have: • a skin rash • high fever, recurring fever, or long lasting fever • less sweat than normal 3. Like other antiepileptic drugs, zonisamide may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Call a healthcare provider right away if you have any of these symptoms, especially if they are new, worse, or worry you: • thoughts about suicide or dying • attempt to commit suicide • new or worse depression • new or worse anxiety • feeling agitated or restless • panic atta Leia o documento completo
ZONISAMIDE- ZONISAMIDE CAPSULE AIDAREX PHARMACEUTICALS LLC ---------- RX ONLY DESCRIPTION Zonisamide USP is an antiseizure drug chemically classified as a sulfonamide and unrelated to other antiseizure agents. The active ingredient is zonisamide USP, 1,2-benzisoxazole-3-methanesulfonamide. The empirical formula is C H N O S with a molecular weight of 212.23. Zonisamide USP is a white powder, pKa = 10.2, and is moderately soluble in water (0.80 mg/mL) and 0.1 N HCl (0.50 mg/mL). The chemical structure is: Zonisamide is supplied for oral administration as capsules containing 100 mg zonisamide USP. Each capsule contains the labeled amount of zonisamide USP plus the following inactive ingredients: microcrystalline cellulose, hydrogenated vegetable oil, gelatin and colorants. Components of gelatin capsules (For 100 mg: titanium dioxide, gelatin and FDA/E172 red iron oxide). Imprint ink dye (Black SW- 9008/SW-9009). CLINICAL PHARMACOLOGY MECHANISM OF ACTION: The precise mechanism(s) by which zonisamide exerts its antiseizure effect is unknown. Zonisamide demonstrated anticonvulsant activity in several experimental models. In animals, zonisamide was effective against tonic extension seizures induced by maximal electroshock but ineffective against clonic seizures induced by subcutaneous pentylenetetrazol. Zonisamide raised the threshold for generalized seizures in the kindled rat model and reduced the duration of cortical focal seizures induced by electrical stimulation of the visual cortex in cats. Furthermore, zonisamide suppressed both interictal spikes and the secondarily generalized seizures produced by cortical application of tungstic acid gel in rats or by cortical freezing in cats. The relevance of these models to human epilepsy is unknown. Zonisamide may produce these effects through action at sodium and calcium channels. _In vitro_ pharmacological studies suggest that zonisamide blocks sodium channels and reduces voltage- dependent, transient inward currents (T-type Ca currents), consequently stabilizing neuron Leia o documento completo